onmouseover effect is very slow, with delays, and sometimes doesn't work until I click

I am using swfobject.js to embed swf files in rows and rows. i have it programmed so that it glows on mouse over, but the glow is often very slow and unresponsive. Sometimes it doesn't turn off after the mouse leaves the area. Sometimes if i quickly move to the next tile, both tiles light up. Sometimes it doesn't glow unless I click it.

I'm using swfobject, and these symptoms are universal on FF and IE, so it's not about the "Click to Activate this control" issue at all.

http://www.tedkwon.com/main.php

is the problem page. I tried limiting the # of .swf files repeated in the loop to 8 only, but it still does that. I compared to another site that has similar swf files repeated based on parameter inputs :

http://www.lesliemiletich.com/soldlistings.html

That site has no slowdowns, and it works just fine even though it has more listings repeated.

Is this an issue with the way I'm embedding my flash??

<div id="listing_<? echo $home['id'];?>" class="listing">
</div>
<div class="hr"></div>
<script type="text/javascript">
      var listing = new SWFObject("listing_fla.swf", "listingswf<? echo $home['id']?>", "847", "248", "8");
      listing.addParam("quality", "high");
      listing.addParam("wmode", "transparent");
      listing.addParam("play", "true");
      listing.addVariable("the_text", "<br/>JUST<br/>LISTED");
      listing.addVariable("headline", "<? echo htmlspecialchars($home['heading'])?>");
      listing.addVariable("desc", "<? echo htmlspecialchars($descvar);?>");
      listing.addVariable("btn_2_url", "#");
      listing.addVariable("btn_3_url", "#");
      listing.addVariable("img_src", "<? echo $settings['sitepath']."homes/".$home['id']."/main.jpg"?>");
      listing.write("listing_<? echo $home['id'];?>");
      </script>



Or is this something that has to be changed within the flash files? Thanks.